nimble_block_base.h

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#ifndef NIMBLE_BLOCK_BASE_H
#define NIMBLE_BLOCK_BASE_H
 
#include <memory>
 
#include "nimble_genesis_mesh.h"
#include "nimble_material.h"
#include "nimble_view.h"
 
namespace nimble {
 
class Element;
 
class BlockBase
{
 public:
  BlockBase() = default;
 
  virtual ~BlockBase() = default;
 
  virtual void
  InstantiateElement() = 0;
 
  double
  GetDensity() const
  {
    return material_->GetDensity();
  }
 
  double
  GetBulkModulus() const
  {
    return material_->GetBulkModulus();
  }
 
  double
  GetShearModulus() const
  {
    return material_->GetShearModulus();
  }
 
  std::shared_ptr<Material>
  GetMaterialPointer() const
  {
    return material_;
  }
 
  std::shared_ptr<Element>
  GetElementPointer() const
  {
    return element_;
  }
 
  virtual double
  ComputeCriticalTimeStep(
      const nimble::Viewify<2>& node_reference_coordinates,
      const nimble::Viewify<2>& node_displacements,
      int                       num_elem,
      const int*                elem_conn) const;
 
  template <typename MatT>
  void
  ComputeTangentStiffnessMatrix(
      int                 num_global_unknowns,
      const double* const reference_coordinates,
      const double* const displacement,
      int                 num_elem,
      const int* const    elem_conn,
      const int* const    global_node_ids,
      MatT&               tangent_stiffness) const;
 
 protected:
  std::string               model_material_parameters_ = "none";
  std::shared_ptr<Element>  element_                   = nullptr;
  std::shared_ptr<Material> material_                  = nullptr;
};
 
}  // namespace nimble
 
#endif  // NIMBLE_BLOCK_BASE_H